Interactive Expand/Collapse Widgets

This is a demonstration of a simple expand/collapse widget built using HTML, CSS, and vanilla JavaScript.

It allows you to reveal or hide sections of content on demand, improving readability and managing screen space effectively.

Key Features:

• Content hidden by default.
• Click button to toggle visibility.
• Independent operation for multiple widgets.
• Clean HTML structure and semantic classes.

Here are some hypothetical steps for configuring a software application:

1. Step 1: Download the latest installer from the official website.
2. Step 2: Run the installer and follow the on-screen prompts.
3. Step 3: After installation, open the application.
4. Step 4: Navigate to 'Settings' and adjust preferences as needed.
5. Step 5: Restart the application for changes to take effect.

This section could also contain images, videos, or other rich media content.

Q: How does this widget work?

A: It uses JavaScript to toggle a CSS class (`is-expanded`) on the content container (`.details`), which in turn changes its display property from none to block.

Q: Can I have multiple widgets on one page?

A: Yes, each widget operates independently due to the way the JavaScript targets elements relative to the clicked button.

Q: Is it accessible?

A: While basic, for full accessibility (e.g., for screen readers), ARIA attributes like aria-expanded and aria-controls should be added to the button and the controlled content respectively.